Amy Winehouse will be performing via satellite for the Grammy's this Sunday, but it's not the US Embassy's fault. It turns out that the US has no problem with the diva's drug use and erratic behavior - her visa was granted. But Winehouse won't be flying in for the award ceremony, opting instead to transmit her music from the comfort of old England.Idolator has the breaking news..Amy performed at the Mercury Prize ceremony last year: